Locomotive buffer-beam.



narran sfrafrns na'rnnr ersten JGSHUA B. BARNES, F SPRINGFIELD, ILLIN 01S, AS'SIGNOR TO DAW/'1S L@ MGTIVE WHEEL COliFANY, OF' ST. LOUIS, MISSGURI, A CORPGRATON 0F DELAWARE.

LGGOMOTEVE BUFFER==BEANL Patented March 26, 1997.

Application filed December 26.1906. Serial'llo. 349,536.

longitudinal members of a locomotive or car.

underframe, and is particularly applicable to that class of buffer-beam which is composed of cast metal, preferably steel, and hitherto made in one piece throughout.

My invention has for its object to obviatethe labor, delay, and expense heretofore incurred of disconnecting and discarding the main or that part of the briller-beam located between and immediately beyond its connection to the said members when breakage of either free end part of the beam happens from collision or other abnormal strain thereat.

The invention consists in features o f novelty, as hereinafter described and claimed, reference being had to the accompanying drawings, forming part of this speeiiication, Whereonv 1 f d i e 1 is a to an view o my im rove bufl'egrl-lbeam; -Figlj a front elevationpthereof; Fig. 3, a vertical transverse section through the same on. line 3 3 in Fig. 1, and Fig.'4 a horizontal section through the end and adjacent part of the beam on line 4 4 in Fi l.

ilie letters and numerals oi' reference denote like parts in all the ligurcs.

a represents my improved briller-beam l'or a locomotive or car undorframe, and b the longitudinal members (broken away) of thel frame, which butt at their ouds against the rear side of the briller-beam a., to which they are lixcd by angles l and bolts 2 (rivets or otherwise) in the usual woll-known manner.

The buil'er-beam c, which in the present case is preforabl composed oi cast-steel and shown as box-s raped in cross-section, consists of three arts, respectively integral-v namely, a mid e art 3, to which thelongitudinal members are lined, and two end arts 4, which extend beyond the said memers and are separably lined to the middle part 3 in any suitable manner-such as that is closed by an upright Wall 3, preferably rah` V beted in cross-section, which when the parts 3 and 4 are assembled is engaged by a simi larly-shaped wall closing the inner meeting end oi' the end part 4, the walls 3 and being fixed securely together, preferably by bolts 5 inserted therethrough from the interior of the parts 3 and 4, respectively, as shown.,

From the bottom of the middle part 3, at each end thereof, preferably orojects entf wardly a flange or lug 6, which bears against the bottom of the inner closed end 4 of the end part 4 for guiding the same in assembling the parts 3 and V4, or in lieu ofthe ilange (i one or more dowel-pins projecting from one of the said parts and registering with corresponding holes in the other part may be used in assembling the parts 3 and 4.

The parts 3 and 4 of the bidder-beam u when assembled and secured together are collectively in every other respect similar in construction and equipment to the ordinary buifenbeam of thisclass and needs no further description, and, furthermore, lny invention maybe applied with slight modification of the meansfor securing its separable parts together to a built-up metal or combination `beam c the bolts 5, which normally secure the said part to the middle part 3 are broken, and thereby releases the end part 4, leaving the middle part 3 of the butler-beam a, with its connections, to the longitudinal members b ol' the underframe intact.

l do not limit myself to the particular means described for securing the parts 3 and 4 together, as in lieu of the rabbcted meeting walls 3 and 4 their meeting surfaces may be plain or formed with dovetailed comiections, as found most suitable, without departure from the principle of my invention.

What l claim as my invent-ion, and desire f to secure by Letters latont, is-- l. A bruler-beam for a locomotive-engine or car underframe, having its body divided transversely into three parts' separably iixed endwise to each other, substantially as described and for the purpose set forth.

2. A butler-beam for a locomotive-engine l shown, wherein each end ot the middle part 3 or car underlrame, having its body divided tansvme'y int@ thee parts, namejr', a 111ML in testimony Wim-@0f I have signed my dl@ l n-dmd to H0 attached to, andfexfname to this specification in the presence of 1o taunting.; bizyimfl the lngitudinal membl's of two subscribing Witnesses.

M ly to engage Wlth the Curresmna l v ui the mide part, and means for V/T'itnefses:

A xng the said parts end xvse to eac? E'PHRAIM R. T]KZWERY,

smbstwtf/tlly as described. ALONZO B .Et/MRS. 

